Merge pull request #41 from rock-core/remove_viz

remove visualization from old frame, when the visualization frame is updated

src/Vizkit3DWidget.cpp

@@ -845,7 +845,14 @@ void Vizkit3DWidget::setPluginDataFrameIntern(const QString& frame, QObject* plu
     vizkit3d::VizPluginBase* viz= dynamic_cast<vizkit3d::VizPluginBase*>(plugin);
     if(!viz)
         throw std::runtime_error("setPluginDataFrame called with something that is not a vizkit3d plugin");
-
+    //remove plugin viz from old frame
+    osg::ref_ptr<osg::Group> vizgroup = viz->getRootNode();
+    //get old frame
+    QString oldframe = viz->getVisualizationFrame();
+    //remove from old frame
+    osg::Group* oldgroup = TransformerGraph::getFrameGroup(*getRootNode(),oldframe.toStdString());
+    oldgroup->removeChild(vizgroup);
+    //add to new frame
     TransformerGraph::addFrame(*getRootNode(),frame.toStdString());
     registerClickHandler(frame.toStdString());
     osg::Group* node = TransformerGraph::getFrameGroup(*getRootNode(),frame.toStdString());